Adcom GFA-555SE User manual

The all time best selling ADCOM amplifier has been updated and upgraded
to meet the requirements of discriminating listeners.
GFA-555se
Two Channel Amplifier
Two Channel Amplier GFA-555se

Advanced Sound & Image, LLC
8541 East Anderson Drive, #101
Scottsdale, Arizona 85255 USA
PH: 480.607.2277
FAX: [phone]
www.adcom.com
[email protected]
GFA-555se
• HighCurrentAmplier
•Bridgeable
•Stable to 1-ohm output impedance
•16 discrete output transistors
•Custom 700 watt toroidal transformer
•60,000uF total storage capacitance
•Ultra-Stable Bias Circuitry
•Direct-Coupled Input & Output Circuitry
•No Current Limiting
•No Output Inductor
•Balanced and Single-Ended Inputs
GFA-555se
Specifications
Dimensions: 7 1/4” x 17” x 12 3/16”
Weight: 35 lbs (16kg)
Power: 120VAC/230VAC / 50-60Hz
SNR: “A” Weighted. > 110dB
Frequency Resp. @ 1watt, 8-ohms:
- 10Hz to 20kHz +0, -0.25dB
Power Bandwidth (-3dB):
- 1.7Hz to 100kHz
GFA-555se
Input Impedance:
- 100k ohms unbalanced
- 10k ohms balanced
Output Power:
- 200 watts/channel 8-ohms
- 600 watts, bridged
- 325 watts/channel 4-ohms
- 900 watts, bridged
The classic award winning amplifier design of the original GFA-555mkII has been reborn. Externally, the chassis footprint and
front panel design are identical to the original. Internally, all circuitry has been upgraded to meet ETL/ETLc, FCC, LVD and CE/
EMC requirements using UL approved FR-4 printed circuit boards. High performance component selectons include ultra low ESR
electrolytic capacitors. The result of these improvements is lower distortion, better dynamic range, improved damping factor and
greater stability and separation of individual instruments on the sound stage.ore del ulluptat nulput deleseq uipsusc ipisim
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